2 files changed, 10 insertions, 5 deletions

diff --git a/noncore/settings/networksettings/mainwindow/mainwindowimp.cpp b/noncore/settings/networksettings/mainwindow/mainwindowimp.cpp
index 650e634..e81f603 100644
--- a/noncore/settings/networksettings/mainwindow/mainwindowimp.cpp
+++ b/noncore/settings/networksettings/mainwindow/mainwindowimp.cpp
@@ -187,25 +187,26 @@ void MainWindowImp::getAllInterfaces()
         ifc.ifc_req = ifrs;
         result = ioctl(sockfd, SIOCGIFCONF, &ifc);
 
         for (unsigned int i = 0; i < ifc.ifc_len / sizeof(struct ifreq); i++)
         {
             struct ifreq *pifr = &ifrs[i];
             if ( !QString( pifr->ifr_name ).startsWith( "wifi" ) ) ifaces += pifr->ifr_name;
             else odebug << "ignoring hostap control interface " << pifr->ifr_name << oendl;
         }
     }
     else
     {
-        procFile.open(IO_ReadOnly);
+        if (!procFile.open(IO_ReadOnly))
+            owarn << "Failed to open proc file " << procFile.name() << oendl;
         QString line;
         QTextStream procTs(&procFile);
         int loc = -1;
 
         procTs.readLine(); // eat a line
         procTs.readLine(); // eat a line
         while((line = procTs.readLine().simplifyWhiteSpace()) != QString::null)
         {
             if((loc = line.find(":")) != -1)
             {
                 // ignore wifi* (hostap control interfaces)
                 if ( !line.left(loc).startsWith( "wifi" ) ) ifaces += line.left(loc);
@@ -723,25 +724,26 @@ void MainWindowImp::setHostname()
 {
     static QRegExp filter("[^A-Za-z0-9_\\-\\.]");
     if (filter.match(m_Nameinput->text())!=-1) {
         odebug << "Wrong hostname" << oendl;
         QMessageBox::critical(0, tr("Sorry"), tr("This is a wrong name.<br>Please use A-Z, a-z, _, - or a single dot."));
         return;
     }
 
     OProcess h;
     _procTemp="";
     h << "hostname" << m_Nameinput->text();
     connect(&h,SIGNAL(receivedStderr(Opie::Core::OProcess*,char*,int)),this,SLOT(slotHostname(Opie::Core::OProcess*,char*,int)));
-    h.start(OProcess::Block,OProcess::Stderr);
+    if (!h.start(OProcess::Block,OProcess::Stderr))
+        owarn << "Failed execution of 'hostname'. Are the paths correct?" << oendl;
     odebug << "Got " << _procTemp << " - " << h.exitStatus() << oendl;
     if (h.exitStatus()!=0) {
         QMessageBox::critical(0, tr("Sorry"), QString(tr("Could not set name.\n%1")).arg(_procTemp.stripWhiteSpace()));
         return;
     }
     _procTemp="";
 
     QFile f(_HOSTFILE);
     if (f.open(IO_Truncate|IO_WriteOnly))
     {
         QTextStream s(&f);
         s << m_Nameinput->text();
@@ -759,25 +761,26 @@ void MainWindowImp::setHostname()
     } else {
         QMessageBox::critical(0, tr("Sorry"), tr("Could not set infrared name."));
     }
 }
 
 void MainWindowImp::initHostname()
 {
     OProcess h;
     _procTemp="";
 
     h << "hostname";
     connect(&h,SIGNAL(receivedStdout(Opie::Core::OProcess*,char*,int)),this,SLOT(slotHostname(Opie::Core::OProcess*,char*,int)));
-    h.start(OProcess::Block,OProcess::AllOutput);
+    if (!h.start(OProcess::Block,OProcess::AllOutput))
+        owarn << "Could not execute 'hostname'. Are the paths correct?" oendl;
     odebug << "Got " << _procTemp <<oendl;
     m_Nameinput->setText(_procTemp.stripWhiteSpace());
     _procTemp="";
 }
 
 void MainWindowImp::slotHostname(Opie::Core::OProcess */*proc*/, char *buffer, int buflen)
 {
     if (buflen < 1 || buffer==0) return;
     char*_t = new char[buflen+1];
     ::memset(_t,0,buflen+1);
     ::memcpy(_t,buffer,buflen);
     _procTemp+=_t;
diff --git a/noncore/settings/networksettings/ppp/modem.cpp b/noncore/settings/networksettings/ppp/modem.cpp
index 7b2e2a3..17ada9b 100644
--- a/noncore/settings/networksettings/ppp/modem.cpp
+++ b/noncore/settings/networksettings/ppp/modem.cpp
@@ -759,26 +759,28 @@ bool Modem::createAuthFile(Auth method, const char *username, const char *passwo
   // restore umask
   umask(old_umask);
 
   // free memory allocated by regcomp
   regfree(&preg);
 
   if(!(oldName = authFile(method, Old)))
     return false;
 
   // delete old file if any
   unlink(oldName);
 
-  rename(authfile, oldName);
-  rename(newName, authfile);
+  if (rename(authfile, oldName) == -1)
+    return false;
+  if (rename(newName, authfile) == -1)
+    return false;
 
   return true;
 }
 
 
 bool Modem::removeAuthFile(Auth method) {
   const char *authfile, *oldName;
 
   if(!(authfile = authFile(method)))
     return false;
   if(!(oldName = authFile(method, Old)))
     return false;